/*
 *	Copyright 2011 ja4cli
 *
 *	Licensed under the Apache License, Version 2.0 (the "License");
 *	you may not use this file except in compliance with the License.
 *	You may obtain a copy of the License at
 *
 *		http://www.apache.org/licenses/LICENSE-2.0
 *
 *	Unless required by applicable law or agreed to in writing, software
 *	distributed under the License is distributed on an "AS IS" BASIS,
 *	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *	See the License for the specific language governing permissions and
 *	limitations under the License.
 */
package org.skarby.ja4cli.conversion;

public class CharacterArgumentConverter implements ArgumentConverter<Character> {

	@Override
	public Character convert(String argument) throws ArgumentConversionException {
		if (argument == null) {
			return null;
		} else {
			argument = argument.trim();
			if (argument.length() != 1) {
				throw new ArgumentConversionException(
					"Only a single character (after whitespace trimming) can be converted to an Character");
			}
			return argument.charAt(0);
		}
	}
}
